MATERIAL: Solid 316L Stainless Steel, Strong and Durable, Never Rust or Color Finger CARE FREE: Safe to contact with water, oil, shampoo, detergent. Keep wearing it during bathing, swimming, exercising, etc. Nickel Free, Hypoallergenic, Inside is Solid, Not Hallow. Very Comfort to Wear. Suitable for wedding, anniversary, engagement, cocktail, evening, valentine occasions Gift box is NOT included. Stainless Steel Signet Ring